Automatic cleaning switching control device for laser range finder

Abstract

The utility model discloses a kind of automatic cleaning switching control device of laser range finder, including protective shell, the inner chamber of protective shell is equipped with support plate, the middle part of support plate is equipped with two groups respectively control switch mechanism of ranging and cleaning, the inside of protective shell is equipped with a group of control assembly for controlling the on-off of two groups of switch switching;Two groups of the switch mechanism include switch seat of symmetrical installation in the top of support plate, by the setting of switch mechanism and control assembly, the movement of second insulating rod is indirectly driven to move by the movement of electric push rod driving moving plate simultaneously, the energized block is moved to between two groups of wiring board of one group of switch mechanism, so that it is energized, and another group of switch mechanism is in disconnected state, so as to realize the effect that the ranging collection and automatic cleaning of range finder are switched between, ranging and cleaning are alternately staggered to carry out, improve the accuracy of range determination of range finder.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder technology, specifically to an automatic cleaning switching control device for laser rangefinders. Background Technology

[0002] A laser rangefinder is an optical instrument that primarily calculates distance by measuring the round-trip time or phase difference of a laser pulse or modulated light signal, combined with the speed of light. In the field of infrastructure structural safety monitoring, laser rangefinders are used to measure the deformation of tunnels, bridges, and foundation pits. In actual applications, laser rangefinders are often used in harsh environments such as construction sites, tunnels, and bridges, where there are risks such as dust, rain, and external damage. The transmitting and receiving ends of the laser rangefinder are easily covered by dust, which can obstruct the laser transmission path and ultimately affect the measurement results. Therefore, it is necessary to use an automatic cleaning mechanism for cleaning. The automatic cleaning mechanism needs to be controlled by a controller and issued an execution signal.

[0003] Existing control devices typically use a power control switch to periodically activate the cleaning mechanism, which mechanically cleans the transmitter and receiver of the rangefinder. This achieves automatic cleaning of the rangefinder. However, if the rangefinder continues to collect data during the cleaning process, errors or deviations in the measurement data may occur, affecting the accuracy of distance measurement. Therefore, we need to propose an automatic cleaning and switching control device for laser rangefinders. Utility Model Content

[0004] The purpose of this invention is to provide an automatic cleaning switching control device for a laser rangefinder. Through the configuration of a switching mechanism and control components, an electric actuator moves a movable plate, which in turn indirectly moves a energized block via a second insulating rod. The energized block moves between two sets of terminal blocks of one set of switching mechanisms. The two sets of terminal blocks, under the action of springs, compress the energized block, thereby connecting one set of circuits while the other set of switching mechanisms remains disconnected. This movement of the energized block allows the two switching mechanisms to switch power, achieving the effect of switching between distance measurement and automatic cleaning of the rangefinder. The distance measurement and cleaning are performed alternately and staggered, improving the accuracy of distance measurement by the rangefinder and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic cleaning switching control device for a laser rangefinder, comprising a protective shell, a support plate installed in the inner cavity of the protective shell, two sets of switching mechanisms for controlling ranging and cleaning respectively installed in the middle of the support plate, and a control component for controlling the switching on and off of the two sets of switches installed inside the protective shell; the two sets of switching mechanisms include switch seats symmetrically installed on the top of the support plate, two sets of limit rods slidably installed through the inner sidewalls of the two sets of switch seats, a set of wiring plates fixedly installed at one end of each of the four sets of limit rods, and springs fitted on the outer arc surface of the middle of each of the four sets of limit rods; the control component includes an electric push rod fixedly bolted to the inner sidewall of the protective shell, a moving plate installed at the output end of the electric push rod, and a energizing block connected to the bottom of the moving plate through a second insulating rod, the energizing block moving between the two sets of wiring plates in one of the sets of switch seats to energize it.

[0006] Preferably, a limiting plate is fixedly installed at one end of each of the two sets of limiting rods, and the two sets of limiting plates are located on the outside of the switch base.

[0007] Preferably, the inner sidewall of the protective shell is provided with two sets of sliding grooves in a support manner, and the two ends of the movable plate are respectively slidably installed inside one set of sliding grooves.

[0008] Preferably, a set of sliding rods is fixedly installed inside each of the two sets of sliding grooves, and both ends of the moving plate are slidably fitted onto the outer arc surface of a set of sliding rods.

[0009] Preferably, one end of each of the two sets of incoming terminal blocks is electrically connected to the power supply via a power cord, one end of one set of outgoing terminal blocks is electrically connected to the ranging system of the rangefinder via a ranging power supply line, and one end of the other set of outgoing terminal blocks is electrically connected to the cleaning mechanism of the rangefinder via a cleaning power supply line.

[0010] Preferably, four sets of first insulating rods are fixedly installed at the bottom of the inner cavity of the protective shell, and the support plate is fixedly installed on the top of the four sets of first insulating rods by bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the setting of a switching mechanism and control components, activates an electric push rod to move a moving plate, which in turn indirectly moves a energized block via a second insulating rod. The energized block moves to the space between the two sets of terminal blocks of one set of switching mechanisms, energizing it, while the other set of switching mechanisms remains in the off state. This allows the movement of the energized block to switch between energizing the two sets of switching mechanisms, thereby achieving the effect of switching between distance measurement and automatic cleaning of the rangefinder. Distance measurement and cleaning are performed alternately and staggered, improving the accuracy of distance measurement by the rangefinder.

[0012] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the protective shell of this utility model; Figure 3 This is a schematic diagram of the installation structure of the first insulating rod of this utility model; Figure 4 This is an exploded view of the control component of this utility model; Figure 5 This is an exploded view of the switching mechanism of this utility model.

[0014] In the diagram: 1. Protective shell; 2. First insulating rod; 3. Support plate; 4. Switch base; 5. Limiting rod; 6. Terminal block; 7. Limiting plate; 8. Spring; 9. Power cord; 10. Distance measuring power supply line; 11. Cleaning power supply line; 12. Electric actuator; 13. Moving plate; 14. Sliding groove; 15. Sliding rod; 16. Second insulating rod; 17. Energizing block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5This utility model provides an automatic cleaning switching control device for a laser rangefinder, including a protective shell 1. A support plate 3 is installed inside the protective shell 1. Two sets of switch mechanisms for controlling ranging and cleaning are installed in the middle of the support plate 3. A control component for switching the two sets of switches is installed inside the protective shell 1. The two sets of switch mechanisms include switch seats 4 symmetrically installed on the top of the support plate 3. Two sets of limit rods 5 are slidably installed through the inner sidewalls of the two sets of switch seats 4. A set of wiring plates 6 are fixedly installed at one end of each of the four sets of limit rods 5. Springs 8 are fitted on the outer arc surface of the middle of each of the four sets of limit rods 5. The control component includes an electric push rod 12 fixedly bolted to the inner sidewall of the protective shell 1. A moving plate 13 is installed at the output end of the electric push rod 12. A energizing block 17 is connected to the bottom of the moving plate 13 through a second insulating rod 16. The energizing block 17 moves between the two sets of wiring plates 6 in one of the sets of switch seats 4 to make it energized.

[0017] In use, through the setting of the switching mechanism and control components, the electric push rod 12 drives the moving plate 13 to move, and at the same time, the second insulating rod 16 indirectly drives the energized block 17 to move. The energized block 17 moves between the two sets of terminal plates 6 of one set of switching mechanisms. The two sets of terminal plates 6 are squeezed by the spring 8, thereby realizing the effect of connecting one set of circuits, while the other set of switching mechanisms is in the open state. Thus, the movement of the energized block 17 enables the two sets of switching mechanisms to switch on and off, thereby realizing the effect of switching between distance measurement and automatic cleaning of the rangefinder. Distance measurement and cleaning are performed alternately and staggered, improving the accuracy of distance measurement of the rangefinder. The switch base 4 and the limit rod 5 are both made of insulating material, and the second insulating rod 16 plays a fixed support role while also having an insulating effect, preventing power from being transmitted to other parts through the energized block 17 and causing short circuits.

[0018] Limiting plates 7 are fixedly installed at one end of the two sets of limiting rods 5. The two sets of limiting plates 7 are located on the outside of the switch base 4. When the two sets of wiring plates 6 move closer or further away from each other, they drive the limiting rods 5 to slide on the switch base 4. By setting the limiting plates 7, the limiting rods 5 are limited to prevent them from sliding off the switch base 4.

[0019] The inner wall of the protective shell 1 is provided with two sets of sliding grooves 14 in a bracing manner. The two ends of the movable plate 13 are slidably installed inside one set of sliding grooves 14. With the setting of the two sets of sliding grooves 14, when the electric push rod 12 pushes the movable plate 13 to move, the two ends of the movable plate 13 are slidably installed inside the one set of sliding grooves 14. The sliding grooves 14 play a limiting role for the movable plate 13, improving the stability of the movable plate 13's movement and indirectly improving the stability of the movement of the energized block 17.

[0020] Each of the two sets of sliding grooves 14 has a set of sliding rods 15 fixedly installed inside. Both ends of the moving plate 13 are slidably fitted onto the outer arc surface of the set of sliding rods 15. Through the setting of the sliding rods 15 inside the sliding grooves 14, both ends of the moving plate 13 can only slide along the outer arc of the sliding rods 15, thereby improving the stability of the moving plate 13. At the same time, the sliding rods 15 also play a supporting role for the moving plate 13.

[0021] One end of each of the two sets of incoming terminal blocks 6 is electrically connected to the power supply via power cord 9. One end of one set of outgoing terminal blocks 6 is electrically connected to the ranging system of the rangefinder via ranging power supply cord 10, and one end of the other set of outgoing terminal blocks 6 is electrically connected to the cleaning mechanism of the rangefinder via cleaning power supply cord 11. The ranging power supply cord 10 and the cleaning power supply cord 11 are connected to the two sets of switching mechanisms via power cord 9. The control component switches between the two sets of switching mechanisms to achieve rapid switching between ranging and cleaning operations.

[0022] Four sets of first insulating rods 2 are fixedly installed at the bottom of the inner cavity of the protective shell 1. The support plate 3 is fixedly installed on the top of the four sets of first insulating rods 2 by bolts. By setting the first insulating rods 2, the support plate 3 is suspended and insulatedly installed inside the protective shell 1, which further improves the safety of electricity use.

[0023] In practical use: The main control system sends a signal, and the electric push rod 12 drives the moving plate 13 to move to the left. The moving plate 13 drives the energized block 17 to insert into the left switch mechanism. The connection plate 6 compresses the spring 8 and makes contact, and the ranging system is powered on. When the ranging accuracy exceeds the threshold three times in a row, the main control system sends a reverse signal, and the controller starts the electric push rod 12 to drive the energized block 17 to move to the right. The energized block 17 switches to the right switch mechanism. At this time, the ranging switch base 4 of the control rangefinder is de-energized. After the cleaning mechanism is powered on and the cleaning is completed, the electric push rod 12 drives the energized block 17 to move to the left. The energized block 17 returns to the two sets of connection plates 6 on the left and the ranging is restored.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning switching control device for a laser rangefinder, characterized in that: Includes a protective shell (1), the inner cavity of which is equipped with a support plate (3), and the middle of the support plate (3) is equipped with two sets of switch mechanisms that control distance measurement and cleaning respectively. Inside the protective shell (1) is a control component that controls the switching of the two sets of switches. The two sets of switch mechanisms include switch seats (4) symmetrically installed on the top of the support plate (3). Two sets of limit rods (5) are slidably installed through the inner sidewalls of the two sets of switch seats (4). A set of wiring plates (6) is fixedly installed at one end of each of the four sets of limit rods (5). Springs (8) are fitted on the outer arc surface of the middle part of each of the four sets of limit rods (5). The control assembly includes an electric push rod (12) fixedly bolted to the inner wall of the protective shell (1). A movable plate (13) is installed at the output end of the electric push rod (12). A energizing block (17) is connected to the bottom of the movable plate (13) through a second insulating rod (16). The energizing block (17) moves to the space between two sets of terminal blocks (6) in one of the switch bases (4) to make it energized.

2. The automatic cleaning switching control device for a laser rangefinder according to claim 1, characterized in that: Limiting plates (7) are fixedly installed at one end of the two sets of limiting rods (5), and the two sets of limiting plates (7) are located on the outside of the switch base (4).

3. The automatic cleaning switching control device for a laser rangefinder according to claim 1, characterized in that: The inner wall of the protective shell (1) is provided with two sets of sliding grooves (14) in a support manner, and the two ends of the movable plate (13) are respectively slidably installed inside the sliding grooves (14).

4. The automatic cleaning switching control device for a laser rangefinder according to claim 3, characterized in that: Both sets of sliding grooves (14) are fixedly installed with a set of sliding rods (15), and both ends of the moving plate (13) are slidably fitted onto the outer arc surface of a set of sliding rods (15).

5. The automatic cleaning switching control device for a laser rangefinder according to claim 1, characterized in that: One end of each of the two sets of incoming terminal blocks (6) is electrically connected to the power supply via a power cord (9). One end of one set of outgoing terminal blocks (6) is electrically connected to the ranging system of the rangefinder via a ranging power supply cord (10), and one end of the other set of outgoing terminal blocks (6) is electrically connected to the cleaning mechanism of the rangefinder via a cleaning power supply cord (11).

6. The automatic cleaning switching control device for a laser rangefinder according to claim 1, characterized in that: The protective shell (1) has four sets of first insulating rods (2) fixedly installed at the bottom of its inner cavity, and the support plate (3) is fixedly installed on the top of the four sets of first insulating rods (2) by bolts.

Images